Learn about Albert Einstein's general theory of relativity, known most famously by the equation E=MC(2). Discover how Einstein's theory has held up in modern times. Related to this Question What is spacetime? What is the fabric of spacetime?
What is nutation? What is a white tern? What are secondary waves? What is the trough of a wave? What are immunosuppressants? What is pedogenesis? What are the semicircular canals? What do the semicircular canals do? What is the fabric of spacetime?
What is gravitational waves (引力波)?Scientists have for the first time observed ripples in the fabric of space time (时空涟漪) called gravitational waves,arriving at the earth from a severely destructive event in the distant universe.It confirms a major prediction of Albert Einstein's 1915...
According to Einstein, gravity is a distortion of spacetime, the fabric of the universe itself. Mass warps space, like a bowling ball creates an indent on a bed sheet, and more massive objects like stars or black holes warp space with effects easily observed in a telescope – the b...
If this is true, then the fabric of spacetime, when looked at on that scale, would appear “chunky” rather than smoothly continuous. What occurred at the Planck time? Planck time is the shortest measurable time interval and could be applied to the time the universe started to evolve after...
It is just emptiness, after all—a backdrop to everything else. Time, likewise, simply ticks on incessantly. But if physicists have learned anything from the long slog to unify their theories, it is that space and time form a system of such staggering complexity that it may defy our most...
What is gravitational waves (引力波)?Scientists have for the first time observed ripples in the fabric of space time (时空涟漪) called gravitational waves,arriving at the earth from a severely destructive event in the distant universe.It confirms a major prediction of Albert Einstein's 1915...
The dominating form of energy in the cosmos dark energy is driving the accelerating expansion of the universe, but its nature remains a mystery.
What dark energy is doing to the fabric of spacetime in this dark energy-dominated epoch of the universe is analogous to that "phantom push." If you're worried about what happens to the child on the swing as it speeds up in our analogy, think how worried cosmologists must be about what...
“And this is why we perceive time very differently from space.” Physicists combine space and time and describe the universe in terms ofspacetime. “One of the interesting things we learned in the 20th century about time and space is that they arenot fixedand sitting in the background,” ...